[dpdk-dev] [PATCH v2 06/10] kni: increase length of timeout for KNI responses

[Dan Gora <dg@adax.com>]

Increase the timeout to receive a response for KNI events handled
through kni_net_process_request to 10 seconds.

Certain actions, such as calling rte_eth_dev_start() can take more
than 3 seconds to return, in addition to any additional time needed
for the DPDK application to call rte_kni_handle_request().

Signed-off-by: Dan Gora <dg@adax.com>
---
 kernel/linux/kni/kni_net.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/linux/kni/kni_net.c b/kernel/linux/kni/kni_net.c
index 7fcfa106c..0850be434 100644
--- a/kernel/linux/kni/kni_net.c
+++ b/kernel/linux/kni/kni_net.c
@@ -25,7 +25,7 @@
 
 #define WD_TIMEOUT 5 /*jiffies */
 
-#define KNI_WAIT_RESPONSE_TIMEOUT 300 /* 3 seconds */
+#define KNI_WAIT_RESPONSE_TIMEOUT 10 /* 10 seconds */
 
 /* typedef for rx function */
 typedef void (*kni_net_rx_t)(struct kni_dev *kni);
@@ -101,7 +101,8 @@ kni_net_process_request(struct kni_dev *kni, struct rte_kni_request *req)
 	}
 
 	ret_val = wait_event_interruptible_timeout(kni->wq,
-			kni_fifo_count(kni->resp_q), 3 * HZ);
+			kni_fifo_count(kni->resp_q),
+			KNI_WAIT_RESPONSE_TIMEOUT * HZ);
 	if (signal_pending(current) || ret_val <= 0) {
 		ret = -ETIME;
 		goto fail;
-- 
2.18.0.rc1.1.g6f333ff2f